# 遍历指定目录，显示目录下的所有文件名
def eachFile(filepath):
    pathDir = os.listdir(filepath)
    for allDir in pathDir:
        child = os.path.join('%s%s' % (filepath, allDir))
        print child.decode('gbk')  # .decode('gbk')是解决中文显示乱码问题


# 读取文件内容并打印
def readFile(filename):
    fopen = open(filename, 'r')  # r 代表read
    for eachLine in fopen:
        print "读取到得内容如下：", eachLine
    fopen.close()


# 输入多行文字，写入指定文件并保存到指定文件夹
def writeFile(filename):
    fopen = open(filename, 'w')
    print "\r请任意输入多行文字", " ( 输入 .号回车保存)"
    while True:
        aLine = raw_input()
        if aLine != ".":
            fopen.write('%s%s' % (aLine, os.linesep))
        else:
            print "文件已保存!"
            break
    fopen.close()


if __name__ == '__main__':
    filePath = "D:\\FileDemo\\Java\\myJava.txt"
    filePathI = "D:\\FileDemo\\Python\\pt.py"
    filePathC = "C:\\"
    eachFile(filePathC)
    readFile(filePath)
    writeFile(filePathI)

# -*- coding: cp936 -*-
import os
path = 'C:\\Users\visual\\Desktop\Day\\StockData\\量比'
for file in os.listdir(path):
    if os.path.isfile(os.path.join(path,file))==True:
        if file.find('.')<0:
            newname=file+'rsfdjndk.jpg'
            os.rename(os.path.join(path,file),os.path.join(path,newname))
            print file,'ok'
#        print file.split('.')[-1]